Edge setting machine



Aug. 17, 1943. 5. .1. RAY

EDGE SETTING MACHINE Filed April 16, 1941 --:i It is an' object of thepresentinvention zto pro- 1 vide. an improved machine which-the abovea"mentioned difficulties have'beenovercome and by 'the use of which'edg'es of soles'of shoesmay be xquickly 'andeffectively set with aminimum ;'amount of effort on the part of the operator. v r

"carrier and l the. tool of the i illustrative machine, which aresupported for. movement by mechanism 5 practically identical with that;disclosed; insaid result that the tool-does not turn readily about theaxis of the spindle so as to enable the opera- 5 tor quickly andeffectively to guide the edge of the shank portion of the sole as itdoes under pressure'of relatively thick portions of the fore- 7 parts ofthe sole edges, for example.

' It'will therefore be appreciatedvthat it is desirable to overcome theconstant. vibration of r the tool; about'the axis of the carrierspindleduring the edge setting operation and that it is equally desirable toinsure that the tool-maybe lengthwise of the adjacent edge of thesole'.

In edge setting machines having highv speed short stroke tools, itisessential that" the :tooI' shall atlalltimes be jrigidly secured to itscarrier, since evena small play .such as exists between toolsand toolcarriers of :edge setters nowv comfsmonly usedg will rapidly ;becomegreater and greater, due to-rwea'rzbetweenthese parts, and will.ultimately .result'in the .tool beingrendered ineffective and .willnecessitate replacingsthe tool oritscarrier'orboth: .r

With the above considerations in view, the tool Patent No. 2,283,204,are; in accordance with a] xfe'ature ofthis invention,staticallybalanced with relation'tothe axi of the spindle 'of thecarrier.

Moreover, in accordance with a'furth-er feature 'of-Ithe invent-iomcthetools, which have work-en- --"gagi ng facesof-different widths and aresecured interchangeably to the carrier, are 7 sor locatedin the'carfierthat,- regardless-of-the sizeofthe tool, v the-{centraLparts' of theirwork-engaging: faces,' and-*- herefore the'centersof pressure offthe r-"work "against said faces, lie approximately in the .axis ofthe-spindle-of the carrier." With sucha 7 construction, it has beenfoundtliat 'th fcarrier and the tool secured thereto do not have the'aboveementioned'tendency to vibrate about-the V ax'isof'the carrierspindle, eitherrw-hen-themachine is running and there is no sole beingpresented to the machine or when the sole is beirig t operated' uponbyvthe machinegf By statically balancing the tool' and the carrier aboutthe" axis of the carrier spindle and causingthe'centen of pressure ofthe Work against the work-engaging "face of the tool to lieapproximately in the' 'aXis r of the spindle; it has been foundthatra'relatively Weak lea: Spring-Can beused to retain the tbOl if inits neutral-"position inwhi-ch lengthwiseele =ments of the work-engagingface of the toolarc parallel to the plane of oscillation of said axis'ofthe-car-rier spindle; It will'-be appr'eciatedthatj =by-providing arelativelyyieldable leaf spring such as above referred 'to, thetoolcanbe readily turned about th'e axisf of the carrier spindle; lunder Dressurecff the work so as to enable; the

'ioperator quickly and effectively to feed past the toolportion's f thesole edge which are sharply curved' heightwise 'o'fthe shoa Moreover, ithas :1 been fohndthatthe: improved machine is-much aseasea 1 easier,from the. viewpoint'of strain on the 01 I erator; to'operate thanmachines now infuse and that the edge set by the machine i well definedand eomplemental to the widthwise outline of the work-engaging face ofthe vtool.

The arrangement disclosed herein for clamping' the tool securely to thecarrier constitutes vthe vsubject matter or. my -co-pending 'applicwjtion SerialNo; 438,479, filedApril 10, 1942 as a division of thepresent application; V

.The various features of the inventionwill be understood and appreciatedfrom the following detailed'description read 'in'connection with theaccompanying drawing, in which.

' Fig. 1 ispa; font view of portions fchine;

FigLZ'is "aside elevation,- partly in section, of the portions of themachine shown in Fig. 1 -'in'the process of setting the edge of a soleof a -:=.shoe;. r. l

' Fig. B'is' alperspective View ofthef'lower end of .atoolcarrierofthemachine; V i, V

, Fig.4 is a perspective view of one of several edgesetting-'toolsfiwhich m'ay be-secured: interchangeably to the carrier;Figlfiisa side view Of'the lower end of the (carrier andani edgegsettingtool whichis secured to thecarrier;

. 5 Figs.-5A';, 5B and Scare-side views, respectively, r of differentedge setting any one of which mayibe secured tor-the :carrier in placepfth 'tool shown in Fig 5; j :7 I

Fig. 6 is a front view of the carrier and the 5 toolwshownin Fig.6; and

Fig. 37 is a: front view'oi .the tool shown in The illustrative machineis described with reference. to settingqthe*edgesiflylFig. .2) of soles-21 of shoes and 1 comprises a "holder 2t (Figs. 1

Vand"2) which is mountedfor reciprocation; oscil- I "flation orvibrationabout'anaxis and has one or more'heads Z'B eachJprovided-:witha cylindrical recess 30. Slidably fitting in each offltherewcesses so: *a cylindrical' spindle Or shank :2 I cf acarriep 34 whichis ,mounted forzbodily re- ;ciprocation or oscillationlin a plane and towhich is secured, through means'which will beidescribed later; an edge'settin'g tool- 36 having 'a work-"- engagingaface' 38.x-The-machmei's'of'thehigh -speedjshortstroke typexand; except for certain ;.improvements in the carrierilthe tool, andimeans 'afoiinterchangeably.securing tools :having workengaging faces of different sha'pes' andwidths to the carrier; is identical with the machineadise 7 closed) insaid; application Serial No.- :335,725;=

which may be 'referred'to foradetaile'd descrip-l. v

tionof the'machine'. 7 1-;

. 7 cl In setting the edges no soles 12 2 ofshoes'pthe V -operatorforces the sole ofrtheshoeupwardly; as j 'shown" Fig. 2; 'with-considerable"' pressure against the work engaging -face- 38 of thetool=36 1 as, he feeds 'the E'shoepast thetodli 1 The work'- i V.engaging ::faces ibf'i-thefgedgetsetting tools vary in w1dthi-inaccordancewitln the'widthlofithe sole edge to .be o'perated apes and areaisomr varying I 1:crass-sectional;shapes injaccordance with the de-"gsiredfshape. to :berzimparted. to thegedg'e of the 'esole Each oftheiillustrative -t00ls 3%;has'al workiengaging iace'oomprisingl anlipseen "'(Eig; 4)

:bead forming grooves42-,-a-bed 44, and a stepped guard face 46.In'order to facilitate feeding portions -48 (Fig.2). A or the soleedgeiiflj, which are zcurvediheig'htwise of the shoe; :past' the tool36,

7'5 and tozinsure against thejsblefidgelbeingi preof the oper-..atin'gTheadofQthe illustrative edge setting maland 2).

, sented at such "an 5 angle l to the too1*-'-that the i toormars theappearancekif the *sole dgefas will *be xplained later; 'thecar'rier 34is mounted 'foriturn'mg movement aboutithe axis fill of its 1 spindle32. In setting'portions 48 f the'sole edge 20jwhich ar'ecurvedheightwiseofthe shoe, the tool 381's turned slightlyl'aboutthe'axis ilfaway', from its neutral: or central-position 1m -whichlehgthwise elements L 52 (Fig.1 4)= of the -wqrk- I v 1 V eng'aging faceaapr thetool lie in-planes' parallel to the "plane of L oscillation ofsaid axis :50 about the axis 28; Suchturninggmovement ofthe tool i 36 iseffected by the combined pressing and t1'1'rfn- .mg action; of the soleedge ZWagainst theworltzenga ging facel38of the too J32'l Eturning inthe rece'ss 3l! .'of the holder "24 against the actionof: Vatorsionresisting leaf. spring: .54-: (Figs. I and 2) fone iend of tvhich' is secured by a! screw 56 to thej holder and afflat' endiface. 58iofflthe other endof which engages 5 'aiflat bottom 60 -(Fie. 2) (its;slot 62"formed in i l goneside ofthe'spindl'e 32 of metered-:34; L; Inorder to facilitatethe initialipr 'esentation the carrier: spindle isi'forcedgwith anapproximatel eonstantpres: surezag'ainst the tool; saidtool; as abovrstatedl is mounted, for sliding movement lengthwiseYofsaid axis 50 (that is, toward'and away "from the' :axis- 26 about whichthe holderizd oscillates) nagainst the-action ofa thrust spring641(Figsl 1 Sliding movement of the; carrier '34: toward theiaxis Zliiseffected Icy-"pressure" 0f the v work against the tool36,":thecarrier'34; when no work is presented to V theqma'chin'e; beingmoved "downwardlyaway'from theaxisfifi by th e'l thrust spring 64 whichis carriedby the holder 24andhas secured to it a ball 6-6 fitting in arecessin" v the end of the carrier. In order to limit move-- ment of thecarrier 34 toward the axis of oscillation 26 of :the holder, the'carrierfisprovidedwith afiangeyfifl which, if the work exertsanunusually ;heavyl pressure: against the tool, is forced into engagementwith v a face: 70 of "the" holder: 24

' During the edge setting OpeTatiQmthesQle-edge usuallybearsagainstajportions of theworkengaging face. 38:0f .the'itool whichare located .betweenthe'outer portion of the lip face lil andxthelouterportion ,of' the guard face '46.:- The l grooves 42, which are.parallellto/the lengthwise v are shaped and arranged to form be 2) atthe margins of the sole edge;

Inlmachinesanowzin common use;

ad 2 igant ,;forcejexerted by the=sole ledgei againstthe fworkI-engagingface of the tool is-applied at a 3 point which is ofisetalconsiclerableidistance later v gallyfrom the axis ofthe-carrier,spindle,:-- the amount; olfvoffset being greater, for examplexin Y thecase of a forepart tool having'la work engagling face of small widththa-nfin the case-jof a v foreparttool having .zavWork-engagingface of"Jlargewidth. It Will thus be clear; thatwhen -the soleerigee is, forcedagainst the -work=engaging 1 face of each of suchztools," the drag'of-the wo'rk against the tool causes theltool and-th'e carrierif .;-towhich itjis'secured to tumor ib at'e rapidIy J ggaboutthe carrienspindle'axislagainst the action- .vofthe' leaf springl Moreoyer, in machine'snow t-lin'common use, the carrier's and the-* yarious toolssecurediinterchangeably to the carrier are he "I- Jspectiveq carrierspmdles aridturn or v lo'rate I .rapidlyab'out said axes f duefto'th'eir centers: of

mass; being offset from the 'axes,- the" degree: and

notstatica-lly balanced about' the axes the resultl -'the' particular{tools secured to. the carriers;

:iqwh'en the machine is-runningidIe alsowhenithe machine is: operatingupon straigh Il itoa;considerablef extentlby {providing an exces- 20 l vv spon in to Y the le'af spring 54, which 'appearlatenisrelativelyweak;iv 4 "-iOnthe .other hand,.. it is; highly edgeflLiithaying been foundthat when'a' heavy jgi curvature of thats portion; of the 'sole beingtrimmed, the-edge 0f the sole. is-likely to have :a

r the tool toycau'se the sole edge to bev'damaged, as fabove described.:It =willy-be noted that ifhxthe .45

' cannot always-be exerteclzagainst the tool -bylth'e spindle axis isstiff. F a

With the foregoingco sider tibn jm new, the l illustrative machine,Lprovided with means,

:WhighWill appear later, for causing the centers f @of the work-engagingfaces 38 of fthe-tools 36;

regardless of the widthof said faceslto be -posi- 50 05 the carrier.spindIeJ32, therebyifnsuringthat there. will-fibea. rapidly increased?wear "between :car'r'ieror both havexto be discarded 4 u With "theforegoing in :view, the-z car 7 hanging or undercut shoulder 16- (Figs'?"andifil 'rit' wliich forfuis a V-shapd notch 18" with aIiaa-Jrapidityofyibration varying in' accordanc Ewan such ti .beingipresentedto the mach d runs'of sole edges -'-20,'."it, is desirable;thatlthelen'g'thwiseyelernents"52 (Fig. 4)- of; theflworke -engagingface 38 of the tool 36 shall lie'in planes ltlie 'axis 5 0 of thespindle 32 of-thegcarrierf34; It wi ll beuappre'ciated that when a tool;or" its" e rner or bothareunbalanced Pwith reference-to 'th'ejcarrierspindleaxis fifl, as-irr the case rof I machine's 'now-in usefsuchtoolsflwillconstantly, l

*turn orf'vibrate. aboutiisaid axis, v both whenithe 1' machine isrunning :idle and "when it isoperatl :ingl upon a sho eQ Such acondition-,;for:reasons -aboye stated, is undesirable and may heremedied sivelykstiif torsion-resisting leafispring corre V importantthat theltool shall turn; readily aboutthe axis 50 of ithecarrier-"spindle '32iwhen slightfturni'ng: pressure:isrexertedgagainst-thetoolsby the, sole a turning pressurejuisi exerted(bythe 'work' against th'e tool the. edge" of the sole of the-shoesome-f times slipsofi thetoo'l, with thelresiultz that; the "outerjendsotlthe lip .andv-guard faces 40,45; 1 f respectiyely' s of the i tool"chew a portion of, the sole-ledge." Accordingly, ifth' leaf spring5471s 7 too stifi, the portions 48*of' the 'sole edges which'ar'eocurved sh'arply'heightwise of. the shoe, have V (V 2130'. be! fed.:past the; tool extremelycarefully and therefore slowly," it having:been foundthat even undensuch' conditions, unless the.- operator movesH theJshOeJin a curvedgpathapproximating the sufiicientl component'ofmovement widthwise of v edge of the sole is relativelythi-n',:sufficient"force sole GF eQtQturn the samei'ahout'thedcarrierl.ii p whenathe torsion fresisting leatspring tio'nedv in approximateal-inement' with the faxis strolzeedgesetting h i 1 tbe any movementbetween the ea n I a the ;t0ol136, it 'having: beenj-found that iftherel is'gari y i 131ay whjatsoever between'the carrier and th-eftoolg'g v I -the e parts; with the'result that th'e tool orthe rier I3.4 is

jacentportion of the surfaceflll/ Each ot-the 1 tools 36, irrespectiveof the width of its work- Yenga'ging face 38,'is provided with adove-tail portion 80 of the same size (approximatelyrdnepositioned inthe carrier 34. with the rear face H ;(Figs. 5A, 513 andi5C)"ofits'dovetai1 portion 80 in engagement with the stop pin'llflythe tool isstatically balanced about'the' carrier spindle axis 50. The carrier 34,whichcomprises the fclamp 1- by which'the tooliii issecured to thecarrier, is also statically balanced about thecarrier spindle found.that 'if, the fiat abutment: face; 84 ninth-e.

tool can be clamped with considerable wedgin' pressure against the fiatabutment face 1.4 i i :3)aof the carrier 34 and: can be effectively-heldagainst movement on said face,--'thereq will not .be any movementbetween the. tool andthe car l rierflduring thegoperation; of themachine. -Ac- 'cordingly, there is provideda clamp comprising slot Skiof the carrier and'tli e"otheii,.: endjof which is constructed andarranged etc. engage one of the-undercut wedge facesjofxthe, dove ,tailportion'lof the tool and to, force the, other Wedge face of said.dovetail portion against the undercut shoulder 16- ofithe carrier 34,"Upon rotation of asc rew 9,2 which is threadedihto the carrier 34 andextends through a recess 94 {Fig 6): in'the' plate 88 ,ithehead of thescrew "causes the platei to swing in a vclockwise direction,;'as

viewed in Fig; l, about'itsupper} end with the 'result that the flatabutment face filtlof the tool forced byxa wedging'action'against'the-wfla't .wabutment face "[4 of, the carrier,,fthe;tool being3 secured. against movement in the carrier. by the shoulder 16 of thecarri'erCand the lowerend of the plate 83. Theltool carrier 34 andits-associated. clamp'n'iay; thus be described as forming, between thema'clovetail recess; 96 (Fig. 3') having ,a flat bottom 14 against whichthe flat abutment face .85! of the tool 36is forced, asabove de-'scribed. Thiserecess constitutes a-guideway-extending transverselyof-the pathjoi move'mentof itheicarrier and parallel to the direction inwhich notedithatithe wedgeiaces 860i thetool-i36 are shaped and arrangedto extend out of and'beyond the dovetail recess 96;

QILIILOldBI to eliminate, or at least toreduceto a minimum, theabove-mentioned tendency ofthe carrier 34 and the tool 36continuously toturn,

ortovibrate'about' the axis 58 of the carrier spindle 32; theillustrative machine, in addition;

toszpo'sitioningi the central partiof the work ehe gaging face '38 ofthe tool in the axis of the "carrier 'spindla has its carrier and toolstatically balanccdWi-th reference to said axis,

V As :-1aeov.e istated the dovetail portions 801' ofthevariousitoolsrare of the same-size, the width of said portionbeingapproximately oneehalf :an

.inch, and equal to the'distance between theiront fqface gfifl otthecarrier 34 .and a; stop pin'rlfill .l ..,(Figs. 1, 3 and 6) whichrissecured to-rthe carrier.

and projects from the abutmentface Hithereof.

walplate 8,8 oneend of which fits-in an elongated axisrSt: It willtherefore: be clear that when the machineis running idle,there;will,belittle, if any, tendencyifor the tool 316 totum about the carrierspindle axis 50. -Moreo.ver, since the cenitersof'theworbenzagingfacesf=38 of the various tools are in; alinementwith the carrier spindleaxis, there will littleqtendencygforfthe tool to vibrate about said axisduring theioperation of the machine; With such a construction, .it ispossible ,to use: the 'ltorsion-resisting leaf spring 54, whichisrelatively weak;v and-Iis therefore adapted yieldingly torotatexreadilyunderipressure of the work, thereby enabling the operatorquicklyand effectively to move portions-48 of the sole edged/0, whichare curved sharply heightwise of the, shoe, Past the .toOl withoutdanger .of moving the, sole. edge across the path ofzoscillation,ofthetool and therefore damaging the sole edge.

Having described my invention;'what I claim asnew and desire to'secu'reby LettersfPatent of the United States is: A

1. An edge settingrmachine comprising a carrier mounted for bodilyoscillation about anaxis and'also fo r;;turningjmovementabout an axis-which is disposed at a:substantia1.;.angle.to the first-namedaxis;said:carrier havingaguideway for receivinginterchangeably any one.of a plurality of edge setting tools having work-engaging faces ofdifferent width, saidguideway extending transversely of the pathofoscillation of the carrierand .paralleLto the direction in which the.width of the tool is measured, a stop engageable Witheachfof saidtoolsto determine the posi- H tion of thetool in. the guideway,,each ofsaidthdwidth oi the.too1'- ismeasured. It will be 7 toolsirrespective of thewidth of its work-engag ing face beingi constructedand arranged to havethe central portion of 'itsiwork-engaging' face in approximate alinementwith the second-named axiswhenithe tool engages-said stop, and means=jorgsecuring the positioned tool inthe 'guideway.

' 32. An edge setting machine comprising a cari rier which ismountedffor bodily vibratorymovement and alsofor turning movementaboutan axis; :said carrier :having a guidewayror "receivinginterchan'geably. any one of aplfur'ality of edge setting" tools havingwork-engaging faces of ,different? character, said guideway extendingtransversely ofgthe path of vibration of the carrier and parallel to thedirection in which the V widthof v the tool: is measured; an edgesetting tool which'is oneof :said plurality in said 'guide-' -way,a,stopengageable with said tool to "determmejthe position :.0f the tool alongthe guide-' ,WElYygGflChOf; said tools irrespective of the char- Thepa-xis 50,1'Whi0h may b descri'bed agt inter-J acter-ofitsvwork-engaging face being constructed and arrangedto bestatically-balanced with reference to said-axis when the tool engagessaid jjstop, and a clamp for securing thepo'sitioned toolinthe'guid'eway 4 t 3. {An edge settingmachine 1 setting. tool, ,acarrier foizgsaid edge setting-tool, ,d-rivinglmeans for recipro'catingthe carrier and the toolapproximatelyina' plane, a connection'betweenjsaid carrier'and fsaid driving means constructed and arrangedto permit turning of z'the toolabout'an axis lyingapproximately intsaidplang resilient means for yie ldi-n gly. holding said a predeterminedneutralpositioneof rotacomprising an edge plane, a. stop 'for limitingth mbvement'off the 7, fclamp for securingjhe'tooljnstopped position insaid'guideway.

v edge setting tool in the] guideway, saidfl d'ge Setting tool beingpn'gqf fa "plurality, pf edge flf} istiGSeandadaptepifltobeinterchangeably I s ett ih'g tools jha'vingi-"difl'ererlxtgpharactristics,

- each tool of said pluralitybeing'dsigndztd en' gagej said stop ina;'desired relation toithexaxis j. T

the I :pqsitiq'n Fof. i the tool in theiguidway; ea'chi Qtoolqo'f 'thepluralipy beingdesigned to engage ".said jstopjn a' desired positionwith respect; tb' I,

- 7 '4. 'Anredge setting machine cqmprising an edge setting too], acarrier fqr "said t0o1, d riying"jmaps, I

guideway; Y j

of yibration'qfthe, 1:001 and pafemllel'12k) thidirec f plurality of Ttcjhls "having different;chracter ceived in said guideway; a stdp or;determining the phafactristiqs of that;10001,"andr'a. damp f er Vsecuringfthe tqolfjn said "s toppednpgs i tionin lsai d p RAiL

